Hi I have a boat GPS older model NS45 GPS fishfinder shows reciver not picking up all wireing is ok and has been fine for years. Has sat unused for 6 months we have changed battery in reciever but still not picking up ??
Regards
Greg

Hi, you see when any set, or unit is left without power going through it, it actually does it harm, things in storage should be powered up at least a few times a month, otherwise the capacitors will loose their "Form" and will not work correctly, and if left too long the unit simply becomes unservicable, also the moisture in the atmosphere, gets absorbed by osmosis, into "Other" compnentry, and this too causes failures, as the moisture, is usually driven out, by the heat of operation, not to mention, any other sort of corrosion, or perhaps also, flat cells, batteries, in a unit, also inductors etc. So as said, this makes a unit more or less unrepairable. if you are not lucky. You will have to get this looked at by a professional, in my professional opinion, I think you need to contact, the manufacturers website, and ask about repair, then send it for repair, BUT ask for a "Quote" for the repair before proceeding, that way, you can make an informed decision,as to repair or replace. As these days often, things can cost almost as much, if not more, that a new unit, with a warranty..

If it has set for 6 months I suggest you take out the battery and be sure all connecting points are clean and free of any corrosion. Corrosion will occur quite rapidly from a dead battery. Clean your receiver very good too because if it was working prior to the 6 months it could be corrosion. Also I would check the new battery to be sure it is fully charged and producing power. Darrell S

A last resort is to get on google and google for the manufacturer. Then surf around in their web site looking for parts and service. Also ask for a manual. Most manufacturers have a list of local parts and repair shops authorized to work on their products. I would try that. Also ask about warranties if they have had problems with this same equipment in the past they may give you a new one or credit on a new one. Good Luck Darrell S

A last resort is to get on google and google for the manufacturer. Then surf around in their web site looking for parts and service. Also ask for a manual. Most manufacturers have a list of local parts and repair shops authorized to work on their products. I would try that. Also ask about warranties if they have had problems with this same equipment in the past they may give you a new one or credit on a new one. Good Luck Darrell S

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I would imagine it might have something to do with water turbulance? Do you have a sensor thats located at the bottom of the boat somewhere? In my grandpas boat, the sensor is at the rear bottom near the hole where you can drain the water, if your going very fast it doesnt work very well, slow or stopped and it works fine. If you have that type of sensor make sure whatever holds it is tight so the sensor cant move around.

If the new harness / parts are listed for use with this model GPS, it should work - unless you have miswired something. Double-check your work. Make sure all connections are made up tight. Pay particular attention to the ground wire. Relying on the boat to pass ground it not reliable. Look for damaged or cut cable from power source and transducer. You may wish to troubleshoot with a meter or a test light to be sure power is available at the GPS. Good luck!

More than likely you have your sensor run underneath the boat and therefore the sensor is directly in the water. When you speed around the hot water on top is what your sensor is picking up, when you slow, you are allowing the sensor to pick up on the colder water just inches below the surface

Hello. Your observation is spot on and it is actually a characteristic that is always true when using sonar. Yes, your Lowrance uses the same sonar as a nuclear powered submarine does. The two factors you focus on, water depth and boat speed are perhaps, the two biggest factors when it comes to the quality of the fishfinder. The boat's engine should be in gear at an idle or just above. Experiment with your boat to find the best throttle location for good arches. Usually, a slow trolling speed works best. The depth of the fish can determine if the fish will arch on the screen. If the fish is in shallow water, the fish is not in the cone angle very long, making it difficult to show an arch. Typically, the deeper the fish, the easier it is to show an arch.If you would like a complete tutorial on Lowrance sonar, go to this link. Enjoy. http://www.lowrance.com/Support/Tips-and-Tutorials/Sonar-Tutorial/

Cut the battery wires where they hook up to the machine. When cut they might need some more wire spliced to them. Get some alligator clips to put on your red and black wires to hook right to your boat battery. When not in use on the boat get a small 12 volt battery, cheaper then two 6 volt disposables.

You only need the red and black wires to supply power to the unit. The red positive wire goes to a positive terminal on your battery or positive side of a bus bar or switch, the black negative wire goes to the negative terminal on the battery or negative common bus bar. Do not try to earth the black wire to an aluminum boat hull... You are asking for trouble! Best to run the black wire straight back to the negative battery terminal or negative bus bar that is wired to the negative battery terminal.
The other colored wires on the 160C plug are used for interfacing with NMEA2000 compatible devices, like a compatible GPS.